DC fault analysis of MMC based HVDC system for large offshore wind farm integration

Yang Gao, Masoud Bazargan, Lie Xu, Wuxing Liang

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

32 Citations (Scopus)


This paper analyzes the behaviour of a modular multilevel converter (MMC) based HVDC system under DC cable fault conditions. The behaviour of the HVDC system during a permanent line-to-line fault is analyzed in details at each stage of the fault timeline. Operation of the proposed system under a specific earthing configuration i.e. converter unearthed /AC transformer secondary side and DC cable solidly earthed, is also analyzed. Simulation studies are provided to assist the analytical analysis. It is observed that both faults leads to substantial AC and DC over-current and result in DC side oscillations.
Original languageEnglish
Title of host publication2nd IET Renewable Power Generation Conference (RPG 2013)
Number of pages4
ISBN (Print)978-1-84919-758-8
Publication statusPublished - Sept 2013
EventIET Renewable Power Generation Conference 2013 - Beijing, China
Duration: 23 Sept 2013 → …


ConferenceIET Renewable Power Generation Conference 2013
Period23/09/13 → …


  • power convertors
  • power transmission faults
  • wind power plants


Dive into the research topics of 'DC fault analysis of MMC based HVDC system for large offshore wind farm integration'. Together they form a unique fingerprint.

Cite this